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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Managing tags, tag areas and tags collections
*
* @package core_tag
* @copyright 2007 Luiz Cruz <luiz.laydner@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once('../config.php');
require_once($CFG->libdir.'/tablelib.php');
require_once('lib.php');
require_once($CFG->libdir.'/adminlib.php');
define('SHOW_ALL_PAGE_SIZE', 50000);
define('DEFAULT_PAGE_SIZE', 30);
$tagschecked = optional_param_array('tagschecked', array(), PARAM_INT);
$tagid = optional_param('tagid', null, PARAM_INT);
$isstandard = optional_param('isstandard', null, PARAM_INT);
$action = optional_param('action', '', PARAM_ALPHA);
$perpage = optional_param('perpage', DEFAULT_PAGE_SIZE, PARAM_INT);
$page = optional_param('page', 0, PARAM_INT);
$tagcollid = optional_param('tc', 0, PARAM_INT);
$tagareaid = optional_param('ta', null, PARAM_INT);
$filter = optional_param('filter', '', PARAM_NOTAGS);
$params = array();
if ($perpage != DEFAULT_PAGE_SIZE) {
$params['perpage'] = $perpage;
}
if ($page > 0) {
$params['page'] = $page;
}
if ($tagcollid) {
$params['tc'] = $tagcollid;
}
if ($filter !== '') {
$params['filter'] = $filter;
}
admin_externalpage_setup('managetags', '', $params, '', array('pagelayout' => 'report'));
if (empty($CFG->usetags)) {
print_error('tagsaredisabled', 'tag');
}
$tagobject = null;
if ($tagid) {
$tagobject = core_tag_tag::get($tagid, '*', MUST_EXIST);
$tagcollid = $tagobject->tagcollid;
}
$tagcoll = core_tag_collection::get_by_id($tagcollid);
$tagarea = core_tag_area::get_by_id($tagareaid);
$manageurl = new moodle_url('/tag/manage.php');
if ($tagcoll) {
// We are inside a tag collection - add it to the breadcrumb.
$PAGE->navbar->add(core_tag_collection::display_name($tagcoll),
new moodle_url($manageurl, array('tc' => $tagcoll->id)));
}
$PAGE->set_blocks_editing_capability('moodle/tag:editblocks');
switch($action) {
case 'colladd':
require_sesskey();
$name = required_param('name', PARAM_NOTAGS);
$searchable = optional_param('searchable', false, PARAM_BOOL);
core_tag_collection::create(array('name' => $name, 'searchable' => $searchable));
redirect($manageurl);
break;
case 'colldelete':
if ($tagcoll && !$tagcoll->component) {
require_sesskey();
core_tag_collection::delete($tagcoll);
\core\notification::success(get_string('changessaved', 'core_tag'));
}
redirect($manageurl);
break;
case 'collmoveup':
if ($tagcoll) {
require_sesskey();
core_tag_collection::change_sortorder($tagcoll, -1);
redirect($manageurl, get_string('changessaved', 'core_tag'), null, \core\output\notification::NOTIFY_SUCCESS);
}
redirect($manageurl);
break;
case 'collmovedown':
if ($tagcoll) {
require_sesskey();
core_tag_collection::change_sortorder($tagcoll, 1);
redirect($manageurl, get_string('changessaved', 'core_tag'), null, \core\output\notification::NOTIFY_SUCCESS);
}
redirect($manageurl);
break;
case 'delete':
if ($tagid) {
require_sesskey();
core_tag_tag::delete_tags(array($tagid));
\core\notification::success(get_string('deleted', 'core_tag'));
}
redirect($PAGE->url);
break;
case 'bulk':
if (optional_param('bulkdelete', null, PARAM_RAW) !== null) {
if ($tagschecked) {
require_sesskey();
core_tag_tag::delete_tags($tagschecked);
\core\notification::success(get_string('deleted', 'core_tag'));
}
redirect($PAGE->url);
} else if (optional_param('bulkcombine', null, PARAM_RAW) !== null) {
$tags = core_tag_tag::get_bulk($tagschecked, '*');
if (count($tags) > 1) {
require_sesskey();
if (($maintag = optional_param('maintag', 0, PARAM_INT)) && array_key_exists($maintag, $tags)) {
$tag = $tags[$maintag];
} else {
$tag = array_shift($tags);
}
$tag->combine_tags($tags);
\core\notification::success(get_string('combined', 'core_tag'));
}
redirect($PAGE->url);
}
break;
case 'renamecombine':
// Allows to rename the tag and if the tag with the new name already exists these tags will be combined.
if ($tagid && ($newname = required_param('newname', PARAM_TAG))) {
require_sesskey();
$tag = core_tag_tag::get($tagid, '*', MUST_EXIST);
$targettag = core_tag_tag::get_by_name($tag->tagcollid, $newname, '*');
if ($targettag) {
$targettag->combine_tags(array($tag));
\core\notification::success(get_string('combined', 'core_tag'));
} else {
$tag->update(array('rawname' => $newname));
\core\notification::success(get_string('changessaved', 'core_tag'));
}
}
redirect($PAGE->url);
break;
case 'addstandardtag':
require_sesskey();
$tagobjects = array();
if ($tagcoll) {
$tagslist = optional_param('tagslist', '', PARAM_RAW);
$newtags = preg_split('/\s*,\s*/', trim($tagslist), -1, PREG_SPLIT_NO_EMPTY);
$tagobjects = core_tag_tag::create_if_missing($tagcoll->id, $newtags, true);
}
foreach ($tagobjects as $tagobject) {
if (!$tagobject->isstandard) {
$tagobject->update(array('isstandard' => 1));
}
}
redirect($PAGE->url, $tagobjects ? get_string('added', 'core_tag') : null,
null, \core\output\notification::NOTIFY_SUCCESS);
break;
}
echo $OUTPUT->header();
if (!$tagcoll) {
// Tag collection is not specified. Display the overview of tag collections and tag areas.
$tagareastable = new core_tag_areas_table($manageurl);
$colltable = new core_tag_collections_table($manageurl);
echo $OUTPUT->heading(get_string('tagcollections', 'core_tag') . $OUTPUT->help_icon('tagcollection', 'tag'), 3);
echo html_writer::table($colltable);
$url = new moodle_url($manageurl, array('action' => 'colladd'));
echo html_writer::div(html_writer::link('#', get_string('addtagcoll', 'tag'), array('data-url' => $url)),
'mdl-right addtagcoll');
echo $OUTPUT->heading(get_string('tagareas', 'core_tag'), 3);
echo html_writer::table($tagareastable);
$PAGE->requires->js_call_amd('core/tag', 'initManageCollectionsPage', array());
echo $OUTPUT->footer();
exit;
}
// Tag collection is specified. Manage tags in this collection.
echo $OUTPUT->heading(core_tag_collection::display_name($tagcoll));
// Form to filter tags.
print('<form class="tag-filter-form" method="get" action="'.$CFG->wwwroot.'/tag/manage.php">');
print('<div class="tag-management-form generalbox"><label class="accesshide" for="id_tagfilter">'. get_string('search') .'</label>'.
'<input type="hidden" name="tc" value="'.$tagcollid.'" />'.
'<input type="hidden" name="perpage" value="'.$perpage.'" />'.
'<input id="id_tagfilter" name="filter" type="text" value=' . s($filter) . '>'.
'<input value="'. s(get_string('search')) .'" type="submit" class="btn btn-secondary"> '.
($filter !== '' ? html_writer::link(new moodle_url($PAGE->url, array('filter' => null)),
get_string('resetfilter', 'tag'), array('class' => 'resetfilterlink')) : '').
'</div>');
print('</form>');
// Link to add an standard tags.
$img = $OUTPUT->pix_icon('t/add', '');
echo '<div class="addstandardtags visibleifjs">' .
html_writer::link('#', $img . get_string('addotags', 'tag'), array('data-action' => 'addstandardtag')) .
'</div>';
$table = new core_tag_manage_table($tagcollid);
echo '<form class="tag-management-form" method="post" action="'.$CFG->wwwroot.'/tag/manage.php">';
echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'tc', 'value' => $tagcollid));
echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'action', 'value' => 'bulk'));
echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'perpage', 'value' => $perpage));
echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'page', 'value' => $page));
echo $table->out($perpage, true);
if ($table->rawdata) {
echo html_writer::start_tag('p');
echo html_writer::tag('button', get_string('deleteselected', 'tag'),
array('id' => 'tag-management-delete', 'type' => 'submit',
'class' => 'tagdeleteselected btn btn-secondary', 'name' => 'bulkdelete'));
echo html_writer::tag('button', get_string('combineselected', 'tag'),
array('id' => 'tag-management-combine', 'type' => 'submit',
'class' => 'tagcombineselected btn btn-secondary', 'name' => 'bulkcombine'));
echo html_writer::end_tag('p');
}
echo '</form>';
$totalcount = $table->totalcount;
if ($perpage == SHOW_ALL_PAGE_SIZE) {
echo html_writer::start_tag('div', array('id' => 'showall'));
$params = array('perpage' => DEFAULT_PAGE_SIZE, 'page' => 0);
$url = new moodle_url($PAGE->url, $params);
echo html_writer::link($url, get_string('showperpage', '', DEFAULT_PAGE_SIZE));
echo html_writer::end_tag('div');
} else if ($totalcount > 0 and $perpage < $totalcount) {
echo html_writer::start_tag('div', array('id' => 'showall'));
$params = array('perpage' => SHOW_ALL_PAGE_SIZE, 'page' => 0);
$url = new moodle_url($PAGE->url, $params);
echo html_writer::link($url, get_string('showall', '', $totalcount));
echo html_writer::end_tag('div');
}
echo $OUTPUT->footer();